Excellent flat with frontal river and sea views, located in Alto de Santa Catarina, in Oeiras. This unique 4+1 bedroom flat is the ideal choice for those looking for comfort and exclusivity. Set in a prestigious condominium with only one flat per floor, it offers an atmosphere of security and tranquillity, complemented by a wide range of services and amenities, including a swimming pool and gym. With a private gross floor area of 306 m² and a total gross floor area of 530 m², this flat stands out for its spacious and functional layout. A 60m2 living room, four bedrooms, two of which are en suite, and a total of five bathrooms provide maximum comfort and privacy. Equipped with built-in Daikin air conditioning in every room. It also has an extra suite, located outside the flat, with access from the terrace, ideal for a maid's room, guest room or office. The property was built in 2009 and is in excellent condition. It also has three parking spaces. The kitchen, with access to the terrace, is fully equipped with Gaggenau appliances and has plenty of storage in lacquered Poggenpohl cupboards. The kitchen area also has a laundry area equipped with a Smeg washing machine and a Siemens tumble dryer. The entire flat has sun exposure to the south, guaranteeing extraordinary natural light and breathtaking views of the river and the sea. The 119m2 terrace offers a cosy outdoor space, ideal for leisure and socialising. It also has a private garden of around 107m2. There is also a storage room of around 18m2. The condominium is equipped with a rooftop swimming pool with incredible views of the river and sea. It also has a very complete gym. Located in one of the most sought-after neighbourhoods in Oeiras, this property benefits from easy access to the main roads, providing a quick connection to the centre of Lisbon and Cascais. It is close to renowned schools, supermarkets and other essential services. If you're looking for a property that combines quality construction, comfort and a strategic location, this flat in Alto de Santa Catarina is the perfect choice. Contact us for more information and to book your viewing.